An efficient dual functional Raman and Fluorescence detection platform achieved by controlling the electromagnetic enhanced field in three-dimensional Ag/ZnO composited arrays

Abstract

Surface-enhanced Raman scattering (SERS) and Metal-enhanced fluorescence (MEF) phenomena can significantly increase the spectroscopic signals to realize sophisticated biological detection. However, integrating SERS and MEF onto one single plasmonic platform...

Increasing charge transfer of SERS by the combination of amorphous Al2O3–Al thin film and ZnO nanorods decorated with Ag nanoparticles for trace detection of metronidazole

“…This is because these platforms not only support CT between the SERS substrate and the absorbed molecules but also direct nanostructure morphologies on which the noble metal is located. Consequently, it is very effective to achieve a highly sensitive SERS substrate made from the combination of noble metals and semiconductor nanostructures, such as the combination of Ag NPs, or Au NPs with ZnO, 6–11 AZO, 12 TiO 2 , 13,14 Al 2 O 3 , 15,16 Cu 2 ZnSnS 4, 17 Si, 18 Cu 2 O, 19 Fe 3 O 4 , 20 ZnO–CuO 21 … and recently, the 2D materials such as MoS 2 , 22 graphene. 23–25 The morphology of ZnO nanomaterials could be easily controlled for nanorods, nanowires, nanoneedles, and nanotubes.…”

Optimizing the Structure of Zinc Oxide Thin Films and Silver Nanoparticles for Preparing High-Performance and Stability SERS Substrate to Detect Banned Antibiotics in Aquaculture

“…In addition to this example, Barveen et al made a SERS-active substrate for the ultrasensitive detection of a popular antibiotic, chloramphenicol (CAP) by fabricating the heterogeneous integration of silver nanoparticles (Ag NPs) on silver vanadate nanorods (β-AgVO 3 NRs) . In addition, many studies indicate that the combination of noble metals and semiconductor nanostructures will enhance the SERS signal. ,− That is because, first, the semiconductor is easy to control the surface morphology where the metal NPs are attached to make good “hot spots”, thereby increasing the signal by the EM. Second, it supports the charge-transfer process between organic molecules and the substrate of the SERS substrate by the CE.…”